You Tell Us--What Are Your Favorite Writing Quotes?

Hi all, it's Julie! Today I want to share some of my favorite quotes about writing, and invite YOU to share your favorites, too. I love a great quote--especially if it's a real truism about writing--and I love to learn what quotes other people admire. So please read on, and share your own in the comments. (And please don't feel too restricted by the "about writing" part of this. Arguably, some of these--especially the one by JK Rowling--are about "life" as much as they are about anything else.)

"Some failure in life is inevitable. It is impossible to live without failing at something, unless you live so cautiously that you might as well not have lived at all—in which case, you fail by default." ~J.K. Rowling

"Lock up your libraries if you like; but there is no gate, no lock, no bolt that you can set upon the freedom of my mind." ~Virginia Woolf

"I would venture to guess that Anon, who wrote so many poems without signing them, was often a woman." ~Virginia Woolf

"You have to write the book that wants to be written. And if the book will be too difficult for grown-ups, then you write it for children." Madeleine L'Engle

"With my writing, what I want to do is humanize the young people I write about." ~Walter Dean Myers

"I keep threatening to keep a formal journal, but whenever I start one it instantly becomes an exercise in self-consciousness. Instead of a journal I manage to have dozens of notebooks with bits and pieces of stories, poems, and notes. Almost every thing I do has its beginning in a notebook of some sort, usually written on a bus or train." ~Walter Dean Myers

So those are (some of) my favorite quotes on writing.  I hope you'll share yours in the comments!